All_file.py

import os

def findAllFile(base):
    for root, ds, fs in os.walk(base):
        for f in fs:
            yield f

def main():
    base = 'D:/Judy/BEH_dpm'
    for i in findAllFile(base):
        print(i)

    print("=======================================================================================================")
    print("=======================================================================================================")
    print("=======================================================================================================")
    print("=======================================================================================================")
    print("=======================================================================================================")

    tf = open("2.txt","rt")
   for i in findAllFile(base):
    print(tf.readline())
    print(tf.readline())
    tf.close()

if __name__ == '__main__':
    main()